Controlling The Monitor With A Computer (Rs-232C); Computer Connection; Communication Conditions; Communication Procedure - Sharp PN-70HC1E Operation Manual

Controlling the Monitor with a computer (RS-232C)

You can control this monitor from a computer via RS-232C
(COM port) on the computer.

Computer connection

Connect with RS-232 straight cable between the computer's
COM port (RS-232C connector) and the RS-232C input
terminal on the monitor. The terminal on the monitor is a
female-type connector.
RS-232C
RS-232 straight cable
input terminal
(commercially available)
Computer
To COM port

Communication conditions

Set the RS-232C communication settings on the computer to
match the monitor's communication settings as follows:
Baud rate 9600bps
Data length 8 bits
Parity bit None

Communication procedure

nCommand format
When a command is sent from the computer to the monitor,
the monitor operates according to the received command and
sends a response message to the computer.
C1 C2 C3 C4
Command field
(4 prescribed
alphanumerical characters)
Example: VOLM0030
* Be sure to input 4 characters for the parameter.
(" " is a return code (0D
Wrong : VOLM30
If a command has "R" listed for "Direction" in the
"RS-232C command table" on page 39, the current value can
be returned by using "?" as the parameter.
Example:
VOLM ? ? ? ? ←
30 ←
TIPS
• Send Command field, Parameter field and Return code
at the same time. When sending a command manually in
1 character units and it takes more than 2 seconds, the
command function does not work.
Stop bit 1 bit
Flow control None
Return code
P1 P2 P3 P4
Parameter field
(4 character string comprised of:
0-9, space, ?)
, 0A or 0D ))
H H H
From computer to monitor (How
much is current volume setting?).
From monitor to computer
(Current volume setting: 30).
37
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